Up to now, piston or diaphragm-controlled two-stroke engines have been used almost exclusively in hand-held engine-powered equipment. Compared to four-stroke engines, they offer advantages with regard to their simple design, low weight, a wide useful speed range, and high power density. However, a disadvantage is the high hydrocarbon emissions which, due to the principle design are caused by the significant gas-exchange losses. In the future, the simple two-stroke engine will no longer be able to meet the increasingly strict pollutant emission thresholds applicable to hand-held engine-powered equipment in Europe and the USA. For this reason, an innovative mixture-lubricated high-performance four-stroke engine for chainsaws was developed. It combines the advantages of the two-stroke engine with the low emissions of the four-stroke principle.
Development of a Valve Controlled Four-stroke Chainsaw to Meet Future Emission Regulations
Sae Technical Papers
Small Engine Technology Conference & Exposition ; 2006
13.11.2006
Aufsatz (Konferenz)
Englisch
Old Trucks Meet Future Regulations
Online Contents | 2008
Ways to Meet Future Emission Regulations for Agricultural Tractor Engines
SAE Technical Papers | 2001
|The potential of synthetic fuels to meet future emission regulations
Kraftfahrwesen | 2006
|MUTAGENICITY AND PAH:S OF PARTICULATE EMISSIONS OF TWO-STROKE CHAINSAW ENGINES
SAE Technical Papers | 2001
|Development of High-Performance 25 cm3 Two-Stroke SI Engine for Light Weight Arborist-Chainsaw
SAE Technical Papers | 2016
|